Grades are a hygiene check, not a security guarantee.

Codex, Plugin

Duck Rtl

A deterministic RTL build and verify loop for AI coding agents.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit fe9a66a80cdd, unchanged since the check below.

INSTALL_UNPINNED PERMISSION_SHELL_DECLARED

Why this grade

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    requirements.txt, line 10 pyverilog>=1.3.0

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    src/cosim.py, line 34 proc = subprocess.run(

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    src/cosim.py, line 34

    proc = subprocess.run(

    src/emulate.py, line 345

    comp = subprocess.run(["iverilog", "-o", vvp, "-s", "emu_tb", *files, harness_path],

    src/emulate.py, line 349

    run = subprocess.run(["vvp", vvp], capture_output=True, text=True)

    Show more

    src/visualizer/__init__.py, line 71

    svg = subprocess.run(

  • Install and update

    Concern

    dependencies are not pinned.

    INSTALL_UNPINNED

    requirements.txt, line 10

    pyverilog>=1.3.0

  • Network

    Pass

    No network call found.

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit fe9a66a80cdd. requests shell access. The manifest names this permission. dependencies are not pinned.

Date and source

Date checked:

View source

github.com

Commit graded: fe9a66a80cdd7a64206d15929ffc3bd956b88dab

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen